Rebound-check.



vv. A. FINLEY. nsouwo HecK. APPLICATION FILED MA R\25.19|6. fgg@ Patented Dec., 18, 19H.

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" WALTER Amana Filtrar, or Financier, weer aimerais', assieme fro rimer r..

l comme, or Heerenveen, reniisrtvaiiie.

' Lacasse.-

REBOUND-critica i Application iledrv'iarch 25, 195.6. Serial Ne. 86,653. i

:To all whom t may] Gomera.' A

Be it known that I, 'WALTER ARTI-{Unlim- LEY, a resident of Fairmont, in the county of Marion and State of lVest Virginia, have invented a new and useful Improvement in ReboundsChecks, o f which the' following is av specification,

This invention relates to rebound cheeks .adapted to be arranged between any two .parts movable with'respect to each other, .and particularly adapted for automobile and similar vehicle use, to restrain and retard the actioii ofthe vehicle springs.

The object of the invention. is to provide a device of the character specified which is of simple construction, which can be cheaply fabricatedand readily applied to a Vehicle -or other device, vwhich is durable and cannotv get out of order, and by means of which the :extent of the restraint of the vehicle springs .can I be varied.

quickly and` readily adjusted or The inventioncoinprises the construction and arran ement of darts hereinafter deI scribedand claimed.

ln theA accompanying drawings, Figurel is a side elevation showing,l the device in operativc relation to the springs of an automa bileg ig. 2 isa vertical longitudinal section on .the line .9e-2, Fig. 3; Fig. 3 is a horizon- 3, Fig. 2; Fig. 451s i a vertical transverse section on the' line Alf-4,

Fig. 3; and lig is a sectional view on the line 5-5, Fig. 3.

ln the drawings the rebound check is shown `applied to an automobile in which l indicates any part of the frame or body of the automobile, shown in this case as the upper spring nfieinber,` while 2 indicates any 4() case as 'the lower member of the spring supportion of the runninggea'r, shown in this porting the body or frame on the axle. rlhese parts may be of any. design or construction and the'attachmeiit of the rebound check thereto is merely indicated diagrammatically.

The rebound check comprises two meinbers desiiiated as an entirety bv the refer- I ence, letters 3 and 4 both of which are show-n substantially iii the forni-of levers having their free ends connected by pivots 5- or other suitable means to the two parts of the vehicle resi'icctively. These connections may be made in' any desired or approved manner. The member 3 is shown as formed from two stamping-s, 6, (i suitably"connectedy to gether, such as by screws yor 'the like 7, and

shaped to forni the casingV for a'chamber to have non-rotatably secured thereto fric- 1 tioii disks 10, each forming one rneinber of a friction clutch or bralre. The vouter faces of these disks are preferably slightly coni,- cal as shown, and iit into cup or cone shaped portions 11 on the .inner ends Oftwolever arms 4*, the outer or free Yends of which are bent toward each' other and brought v.into contact, and which lever arms collectively form the member -Tlie lever arms flieend the disks l0 are held in place, and the friction between the disks l0 and the cups ll is adjusted, bynieans of a bolt l/l extending through the hollow shaft 9 and provided on one end with a head 15 on its opposite Aend being threaded te receive a winged nut 16 bearinagainst a Spring washr 1.7 which in turn bea-rsagainst the outer face of one of the lever arms it bviously, the bolt and nut hold the parte in place, and by merely turning said winged nut, the pressure be tween the disks i0 and cups il can be varied soV as to vary the friction or braking effect between said disks and cups. Preferably a suitable friction lining, such as brakeba'ndlining 18 is provided on either said disks or in said cups, beingr shown as secured by rivets in said cupa-#for the purpose of increasing the frictional or braking effect.

Suitably 'secured-to the shaft S within thc casing formed by the inembers', Gis a gear 420 (shown aslreyed to the shaft 9), which mesheswith a similarrgijear 2l rotatable idly on a stud 22 extending between the, side walls of the casing. 'These gears may be plain spur gears, but preferably each will be a double gear, that lis provided with two rows of teeth 23 and 24 with plane faces or hubs 2.5 therebetween. Preferably the teeth 23 and 24 are helical or inclined, with the spiral or inclination-ofthe two rows ofeach gear runningn in oppositev directions, in' order to reduce noise and prevent lostmoftion.

Suitable means areprovided for locking; lthese two gears together, such locking inea-ns being shown as a wedge 26 exten-ding between the plane faces or hubs 2,5 of said gears from one side and being pressed inwardly between said hubs by means of a Spring 27 interposed between the outer end of the wedge and a removable cap 28 closing an opening through the top of the casing througlrwhich access can be had to said spring and wedge. Suitable packing is preferably placed between the two members 6, 6' forming the casing so as to make the same grease-tight, and in operation preferably the gears in said casing will be packed in grease so` as to reduce wear and friction and prevent noise.

The parts above described are so arranged that whenever the free ends of the 'two le vers 3 Iand at move toward each other, such for instance, as when the vehicle body descends, due to compression of the springs, the gear 21 will merely roll idly around gear 20, so that practically no resistance whatsoever is offered to the downward movement of the vehicle body. When, however, the ve-` hicle body moves in the opposite direction, such as occurs on account of rebounds when the vehicle strikes a rough spot in the road, the separation of the free ends of the two lever members causes the wedge 2G to lock the two gears 20 and'Ql, together, so that the further upward movement of the vehicle body, producing further separation of the free ends of the two lever members 3 and 4:, causes t-he gear 21 to carry with it the gear 20 and thus rotate the shaftf). :This produces rotary movement of the disks 10 in the cups '11, and this rotary movement is resisted by the friction or braking effect existing between said disks and cups. The tighter the winged nut 16 has been set, the greater is this frictional retardation to the rotary movement of the disks. Consequently the upward rebound of the vehicle body is restrained to the extentvof this frictional braking effect, and the vehicle body is thereby prevented from being thrown violently upwardly. When, however, the vehicle body reaches the upward limit of its movement` it will settle gradually without any retardation or hindrance whatsoever from the rebound device.

The rebound device described does not interfere with the easy riding of the vehicle, as the compression of the vehicle springs in no way interferred with. It does, however, prevent violent upward pitching of the vehicle body, as above described.

The rebound device described can be readily applied to any vehicle, or to any other device in which there-are two parts moving toward and from each other. The particular device illustrated and described is an improvement upon my Patent No. 1,040,917, grantedv October 8, 1912.

l. A rebound check comprising two members movable f relat-ive to one another and Leccese each adapted 'to be attached to a portion of a vehicle frame, means movable relative to one of said members and arranged to frictionally vengage the same, a'isecond means carried by the other member and' arranged to move positively with the Pirst means and relative to said other member, and means comprising a wedge normally biased by a spring .between adjacent smooth surfaces on the two movable means to lock said means together without lost motion when the memn bers are moved relative to one another in.' one direction but permitting free relative move ment of the members when moved in the other direction.

A. rebound check comprising two members movable relative to one another and each adapted to be attached to a portion of a vehicle frame, means arranged to rotate relative to one of said members and frictionally engage the same, a second rotatable means carried by the other member and arranged to rotate positively with the iii-st means and relative to the other member, and means comprising a wedge normally biased by a spring into frictional engagement with adjacent smooth surfaceson the two rotatable means to lock said means together without lost motion when the two members are moved relative Vto one another in. one direction but permitting free relative movement of the members in the other direction.

A rebound check comprising two members movable relative to one another and each adapted to be attached to a portion of a vehicle frame, means arranged to rotate relative to one of the members and frictionally engage the same, said means including a. gear, a second gear carried by theother member and arranged to rotate with the first and relative to said other member, and means comprising a wedge normally biased by a spring into engagement with adjacent smooth surfaces on the gears to lock said gears together without lost motion when the members are moved relative to one another in one direction but permitting free relative movement of the gears when the members are moved relative to each other in the other direction.

4. A rebound check comprising two members movable relative to one ano-ther and each adapted to be attached to a portion of a vehicle Ytrame, a gear housed within one of the members and attached to friction disks arranged to frictionally engage the other member, av second gear housed within the first member-nml arranred to move with it and meshing with the tiist gear, and means comprising a wedge normally biased by a spring into frictional engagement with adjacent smooth surfaces on the gears to lock said l gears together without ,lost motion when the members are moved relative to one annther in one direction but permitting free iis.V

i V 'Lacasse of the gears when the relative movement to each other in members are moved relative the other direction. 1

5. A, rebound check comprising a member having.` spaced arms atL one 'of its ends, a shaft to which said arms areiattached, a gear journaled on said shaft betweenfth'e arms and provided with means vfor 'ffrictionally engaging their inner surfae'esfffa Kmember joui'naled to rotate about thefsame aXis as said gear and housing the 'same-,et gear carriediby said 'member' and Alioi'iseil thereby, and .means comprising a wedge.; normally Vbiased by a spring into .frictional engagement with adjacent smooth surfaces on the gears 'to lock said gears together without lost mo ion' -wheiithe members-are moved relative to4 one another in one direction but permitting .free relative movement of the gears 2o when the members are moved relative to one another in the opposite direction.

6. A rebound check comprising a member arranged to be attached to a vehicle frame and having spaced friction disks, a shaft .on which said disks are -journaled, gear journaled on said --shaft between lthe disks and provided with meansfor frictionally engaging them, a member having one of' its ends arranged to beattaclied to another vehicle part and having its other endhollow and' axis of. theV arranged to oscillate about the 4shaft and to house the gear, a second gear journaled in said second member and housed by the hollow end thereof, said second gear fmeshiing with theirst, and means compris'- ing ,a wedge normally biased by a spring into y frictional engagement with adjacent smooth surfaces on `the gears to lock said gears together lwhen the members 40 tive to one .a no'ther in one` direction lbut permitting free Irelative movement of the gears when themembers are moved relative to each other in the `opposite direction. 7. A rebound check comprising a member arranged to be attached to and having spaced. hemispherically shaped friction disks, a shaft on hemispherieally--sh'ad members carrying Vcomplementary to the disksand arranged tofrictionally engage their inner faces, -ber mounted tolcscillate about the ,aX

said shaft and arranged to house the gear, a second gear carried by said second inember and housed` thereby, said second gear meshing with the first rand both of said gears having annular recesses in their peripheral faces, andv meansl comprising a wedgenormally biased by a" spring into-'frictional engagement with theadjacent surfaces of the gears together annular `recesses toilock the without lost motion ywhen' the members vare moved relative to .one another in one direction but permitting `free-relativemovement 55' of the gears wh'enthe members are moved permitting free rotation Vfree relative movement of the members in A' are moved rela# the surfaces the first a vehicle frame which said disks. are Journaled, a gear journaled n said shaft means arranged to lock it disks with a gear l having yone of its endsarrfanged to be at# and the other j' end. pivoted to rotate about the same' anis a'gear carried bysaid'- e arm `meshing with thegear of the friction' relative to one another in the opposite direetion.

8. A'rebound check comprising a niemeber er rryin g a shaft, a rotatable means joursl naled on said shaft and arranged to frictionally engage said member, a second niembei' journaled to rotate about the axis of said' shaft and carrying a rotatable means ar-y ranged to positively rotate with the `first means and relatively to said second member,

said second rotatable means having a smoothr surface adjacent a smooth surface on t first rote table means, and means coinpiisi engagement with-the adjacent smoothv 'en said two means together without lost metio when the two members are moved relative `a wedge normally biased bya spring intr. 3 0 faces on the two rotatable. means to \io'ck' 9. 'A rebound check comprising.,r a member` A .carrying a shaftJ means ]ournaled on said' shaft and 'arranged to 'said member, said means including second. member pivoted to rotate axis of said shaft, a gear carried by ksaid sec frictionaiiy engage`- a. gear, a' about ,the

ond member meshing-with the irst gear and f arranged to rotate spring into engagement with relative to said secondi member, and a wedge normallybiased by adjacent smooth surfaces on said'gears to lock theL gears together when. the members are moved e one direction but of the gears and relative to one another in the otherf direction.

l0; A rebound check comprising a-nieinber` arranged to be attached to a vehicle frame 4 md having tv@ Oppositely disposed friction,

surfaces, a rotatable means including friction disks arranged to frictionally ei'igage including a rotatable member connected t the friction disks', and a third amber io cated between the faces of the' ii andarranged to oscillate about the same member and falsoI rst member axisas the rotatable member, and carrying" i to t. agrotatable member when moved in 'one d;

rection, said third member serving to house the means carried by it and the rotatable tached to a vehicle frantic as the friction device Qction butj yperniittziig free movement in the other diw two rotatable them, an arm device, means for locking sai d gears together one direction but of the arie the 131 other direction, said airm being arranged to house both of said gears, and a second member adapted to be attached to a vehicle frame 'having friction surfaces arranged to engage the friction disks of the friction device eX- ternally of the housed portion thereof.

12. A rebound check comprising a member arranged to be attached to a vehicle frame and having two oppositely disposed friction surfaces, a rotatable means having friction disks arranged to engage the surfaces of the first member and including a gear located between the disks, a second member pivoted to rotate about the same axis as the rotatable means and between the disks thereof, said second member carrying a gear meshing with the first gear, locking means including a wedge normally biased `between adjacent smooth surfaces on the two gears to lock them rigidly together when the second member is moved in one direction but permitting free movement of the member in the opposite direction, said second member serving to house both of said gears and the locking means. y

13. A rebound check adapted to be arranged between two parts of a vehicle and lcomprising two members arranged for attachment to the two vehicle parts respectively, one of said .members being a lever connected by one end to one of the vehicle parts, a hollow shaft journaled in one of said members, friction disks on the ends of said shaft, the opposite member being double and being provided with friction disks co' operating' with the friction disks on the shaft, an adjustable tie member extending through said hollow shaft and said friction disks and serving to exert pressure of said disks against each other and to thereby connect the said shaft to the opposite member, and means completely incased in the member in which said shaft is journaled and serving to lock said shaft against rotation when the vehicle parts move away from each other and for releasing said shaft when the vehicle parts move toward each other.

14. A rebound check adapted To be arranged between two parts of a vehicle and comprising two lever members, a hollow shaft journaled in one of said lever members., a friction disk on each end of said shaft, the opposite lever member being double and having a friction disk on one end of each of its parts an@- coperating" vehicle parts respectively, and means com-V pletely incased in the member in which said shaft is iournaled and serving to lock said shaft against rotation when the vehicle parts move away from each other and for releasing said shaft when the vehicle parts move toward each other.

15. A rebound check adapted to be arranged between two parts of a vehicle and comprising a casing for attachment to one vehicle part, a hollow shaft journaled in said casing, a friction disk on each end of said shaft, a double lever member connected by one end to the other vehicle part, a pair of friction disks on the opposite end of said lever member and coperating with the friction disks on the shaft, an adjustable tic member extending through said hollow shaft and said disks and serving to connect said lever member to said shaft and to exert pressure between said friction disks, and means in said casing for locking said Shaft against rotation when the vehicle parts move away from each other and for releasing said shaft when the vehicle parts move toward each other.

16. A rebound check adapted to bear ranged between two parts of a vehicle and comprising two members arranged for attachment to the two vehicle parts respectively, one of said members being a lever connected to one end of one of the vehicle parts, a hollow shaft j ournaled in one of said members, friction disks on the ends of said shaft, the opposite member being double and being provided with friction disks coperating with the friction disks on the shaft, an adjustable tie member extending through said hollow shaft and said friction disks4 and serving to exert pressure .of said disks against each other and to thereby connect the said shaft to the opposite member, a gear secured toy said shaft, a second gear journaled on the other of said members and mounted to oscillate in engagement with the shaft, the opposite lever member being double and having a friction disk on one end of each of its parts and coperating withl the friction disks on said shaft, an adjustable tie member extending through said hol-- low shaft and said friction disks and serving to connect the one lever member to said hollow shaft, and to produce friction between said disks, the opposite ends of said lever memlfcrs being ceinected Ato the two vehicle parts respectively, a gear secured to said shaft, a second gear journaled on one of said members and mounted to osciliate in engagement with the first named gear and to be rotated thereby, and means on one side of the point of Contact of said gears; Jfor engaging between the same` to ieek said gears against rotation when the vehiclebarts move away from each other and for freelypermtting rotation of said gears when said vehicle parts move toward each other.

18. A rebound check adapted to be arranged between two parts or' a vehicle and comprising a casing for attachment to one vehicle part, a hollow shaft journaled in said easing, a friction disk on each end of said sha .3, a double lever member connected by one end to the other Vehicle part7 a pair of friction disks on the opposite lend of said lever member and coperating with the friction disks on the shaft,y an adjustable tie member y*extending throulgh said hollow shafty and said disks and serving to. connect said lever member to said shaft andvto exert pressure between said friction disks7 a gear in said easing on said shaft, a second gear mounted in said casing to oscillate in enfree rotation of sai'd gears when the Vehicle parts move toward each other.

In testimony whereof, I have hereunto' set Vmy hand.

WALTER terrine, Eintr-EY.

Witnesses: K GLENN' H. LA. F.. Jamison, 

